London -LRB- CNN -RRB- -- Special coins designed to mark the christening later this month of Prince George , the baby son of Prince William and his wife , Catherine , go into production Tuesday in Britain .

Prince George , who was born in July , is the first royal baby to be honored with a christening coin from the Royal Mint .

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The design of the coins , to be produced by the Royal Mint in a range of sizes and materials , has been approved by his parents , the Duke and Duchess of Cambridge , and his great-grandmother , Queen Elizabeth II , the Royal Mint said .

Members of the public can buy the keepsakes , which start at 13 pounds -LRB- $ 21 -RRB- for the simplest type but rise to a whopping 50,000 pounds -LRB- $ 80,000 -RRB- for a version containing a kilogram of gold .

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The inscription on the coin reads , `` To celebrate the Christening of Prince George of Cambridge 2013 '' and is flanked by two harp-playing cherubs .

The christening will be performed by the Archbishop of Canterbury , the Most Rev. Justin Welby , on October 23 at the Chapel Royal , St. James 's Palace .

A special silver coin was also issued to mark Prince George 's July 22 birth . He is third in line for the throne after his grandfather , Prince Charles , and father , Prince William .

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Special coins to mark the christening of Prince George go into production

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He will be christened this month at the Chapel Royal , St. James 's Palace

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The coins are available for sale , with the largest gold version priced at $ 80,000